LR4 Beta & DNG (found my answer)

Downloaded. Exported a raw file to DNG. Sizing is now available for DNG, but I did not check this box. The exported file is approximately 1/4 of the size of the original raw, whereas in the past it was approximately 15% smaller. Anyone experiencing the same phenomena?

Please ignore. I had the "Lossy Compression" box ticked. Without this, gives the same DNG characteristics as before. Will have to read up about the Lossy compression. May be an option as a second backup saving lots of hd space.